Star Ocean: The Last Hope International

Missable!!!
There are a total of 147 weapons data that can be collected throughout the game. You collect weapon data buy purchasing them from shops, finding them in chests, and by creating them with item creation. The other half of weapons data can be collected by inspecting objects, speaking to the NPCs (Non Playable Characters), and by defeating monsters who's holding a weapon's data. Make sure to buy every weapon in town's shopping areas, even if you're never going to equip it. For a complete list of each weapon data, refer to the Weapon Data Appendix thread.

Although I marked it as a missable trophy. This trophy can be earned over multiple playthroughs. It's missable only if you didn't get Faize's item creation recipes which makes four of his weapons for the weapon data collection.